"It's fairly simple to do but you personally will not be able to do so. The Mac version of Ventrilo is very poorly written with support for only one codec, Speex. Your guild most likely is using the standard GSM. Have the administrator of your Ventrilo server switch codecs to Speex instead of GSM. Vent will run fine then.

On a side note, OSX is perfectly capable of understanding and using GSM codec but the producers of Vent have not ever written support in their program for it. Maybe one day they will realize Windows machines aren't the only computers out there."

I found a free public vent at freevent.net, check it out and see if it works on a mac.There was a channel with 10 ppl in it when I looked and I went to check it out for a few seconds and they were talking about wow.I'm guessing the server pays for itself from the massive amount of ads on that site